Black-eyed Susan vine
துன்பேர்சியா அலாடாകരിങ്കണ്ണിকাজল আঁখি
Thunbergia alata Bojer ex Sims
- light
- Sun–part
- water
- —
- tall
- 3.4 m
- wide
- 1.4 m
Acanthaceae
Also called Blackeyed Susan vine, Blackeyed Susan, Blackeyed Susan Clockvine
Formerly Endomelas alata, Thunbergia albiflora, Thunbergia aurantiaca, Thunbergia backeri, and 12 more
When it flowers
Flowers all year in the tropics.
Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.
If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.
Something wrong with it?About it
- Grows as
- Climbing shrubKew's checklist, not yet checked
- Climate
- Seasonally dry tropicalKew's checklist, not yet checked
- Wild in
- Trop. & S. Africa, MadagascarKew's checklist, not yet checked
- Light
- Full sun to part shade (3 h or more)Read from NC State Extension, one source
- Height
- 3.0 m to 3.7 mRead from NC State Extension and Wikipedia, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: NC State Extension 3–8 ft; Wikipedia 5–5 m
- Spread
- 91 cm to 1.8 mRead from NC State Extension, one source
- Flowers
- Yellow, orangeRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: NC State Extension orange, yellow; Wikipedia orange, red, white, yellow
- Coldest it survives
- -1.1 °C (USDA zone 10a)Read from NC State Extension, one source
Not known yet: water, heat, hottest it survives.
In other languages (12)
- Spanish
- Hierba africana del susto, Ojo de poeta, ojos de Susanita
- Chinese
- 黑眼花, 黑眼鄧伯花, 黃花山牽牛
- German
- Schwarzäugige Susanne
- Portuguese
- Suzana-de-olhos-negros
- French
- Suzanne aux yeux noirs
- Dutch
- Suzanne-met-de-mooie-ogen
- Finnish
- mustasilmäsusanna
- Czech
- thunbergie křídlatá
- Japanese
- ヤハズカズラ, ヤバネカズラ
- Chinese (China)
- 翼叶山牵牛
- Greek
- Μαυρομάτα Σουζάνα
- Swedish
- svartöga
Where this comes from
- iNaturalist, read 2026-10-24, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-26, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- NC State Extension, read 2026-10-25, fact, cited
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-24, CC BY 3.0
- iNaturalist, read 2026-10-25, CC0
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Thunbergia alata (built for Vanagrha) by Vanagrha, own
A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.